Jacob dreisxerner



(No Model.)

J. DREISERNER. AMMONIA DIPPER VALVE Patented Sept. 6

Even f az# UNITED STATES PATENT OFFICE..

JACOB DREISERNER, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE NATIONALAMMONIA COMPANY, OF SAME PLAOE.

AMMONIA DlPPER-VALVE.

SPECIFICATION forming part of Letters Patent No. 482,233, datedSeptember 6, 1892.

Application filed April 18. 1892. Serial No. 4 model-l To all whom 'tmay aoncern:

Be it known that I, JACOB DREISERNER, of the city of St. Louis, in theState of Missouri, have invented a certain new and useful Improvement inAmmoniaDipper-Valves, of which the following is a full,clear, and exactdescription, reference being had to the aocompanying drawings, formingpart ot' this specification.

This invention relates to an am nonia-valve for charging and dischargingthe gas-cylinders in which the amnonia is shipped, and which valve has abranched du plex integral valve-joint, with which is combined a pendentdipper-pipe, whose mouth is in close proximity to the top of the gascylinder, as shown in broken lines in Figure I, when charging for theoccasional release of the gas m'a the usual escape-valve,(not shown,)and the month of which dipper-pipe in the then inverted position of thecylinder when discharging is in close proxinity to the then bottom ofsaid gas-cylinder to insure the complete discharge of the anmonia fromthe cylinder.

Fig. I is a detail longitudinal view, part broken away and in verticalsection, ot' the ammonia-gas cylinder and shows the integral branchedammonia-valve joint and the dipper-pipe secured thereto. Fig. II is avertical detail section taken on line II II, Fig. lII, and shows theinterior duplex arrangement of the valve and the charging-pipe; and Fig.III is a vertical section taken on line III llI, Fig. II, and shows thesoft-metal cushion valve-seat.

Referring to the drawings, l represents the metal gas-cylinder, and 2 isthe coneave valve bearer-head thereof. 3 is the screw-threaded perforateseat in the center of said concave head, in which the screw-threadednozzle 4 of the integral branched valve-joint 5 is seated.

6 represents the arc curved dipper-pipe, the attachment screw-threadedend '7 of which is screw seated in the perforate-screw bore 8 of thenozzle 4. The nozzle 9 of said dipperpipe extends to the near vicinityof the upper side of the gas-cylinder when said cylinder is beingcharged, as shown in brokenlinesin Fig. I, so as to allow vent for theescape of the air or Volatile gas when it is crowded out by the chargeof condensed liquefied gas, hereinafter explained. hen, however, thegas-cylinder, after reaching its destination, is being discharged of itscontents, the said cylinder is inverted to the reverse side to that onwhich it laid when charging, and is then in the position shown in Fig.I, in which the nozzle 9 of its dipper-pipe G is in close proximity tothe then bottom side of said cylinder, sothat in discharging thecontents of the cylinder the said dipperpipe by its suction entirelyexhausts the same. The integral branched valve-joint 5 has a duplexbore, which iS coustltuted of the main horizontal screw-threadedValve-bore 10, the smooth-bore terminal 21, the intermediate smooth-bore11 at the mouth of the valve, which is on line with the bores 10, 21,and 8 and connect the same, but is of a smaller diameter than either,corresponding With the inside diameter of the dipper-pipe 6, and theangle-bore 12, which runs downinto the main horizontal valve-bore 10,making together a duplex or fork bore.

13 represents an elarged screw-perforate bore at the upper end of thesmooth anglebore 12 and at the same angle.

14: is a short smooth still further enlarged bore, WhlCh constitutes agasket-seat at the upper end of and at the same angle as the twolast-mentioned bores.

15 represents the conprcssor supply-pipe, (the detail attachment end ofwhich is shown in Figs. I and 11,) the scrmv-attachnent end lb' of whichengages in said screw-seat 13 in said integral branched joint. A rubbergasket 17 fits around said compre'ssor supplypipe and on saidgasket-seat li. 18 represents a jam-not which is screw-mounted on saidcompressor supply-pipe 15 and the round stern 19 of which works downintothe gasketbore l t and compresses said rubber gasket 17, so as throughthe gasket to tighten the joint and through the jam-nut to tighten thecompressor supply-pipe to its screw-seat.

20 represents a soft-metal gasket, preferably made of lead, the diameterof which coincides With that of the slightlyeduced diameter of thesmooth terminal 2l of the main horizontal screw-bore 10 of the valvc-seat. The said soft-metal gasket is seated against the shoulderformed in the horizontal valve-seat by the reduced diameter of theintermediate bore 11 to that of 21. 23 represents the valve-stem, whosescrew 24 engaes in the aforesaid screw-bore valve-seat lO. 25 is thesnooth slightly-rednced extension of said valve-sten, that is seated andworks in its smooth-bore seat 21, and 26 is a still further reduced ex-.

tension of said valve-stem, which worksjwithi in and without thesoft-metal ga'sket 20. 27 is the terminal bevel-point of saidvalve-stem, and 28 is the shoulder between the extensions 25 and 26,which shoulder, when the Valve is closed, presses against the soft-metalgasket 20, (which gasket is preferahly made of lead,) so as to cfiect agas-tight seat for the ammonia-valve stem. 29 represents the reducedneck of said valve-steu' 30 is its shoulder, which is of the samediameter as the outer periphery of its screw 24, and 31 is the wrenchseat-head, which forms the outer terminal of said amnonia-valve sten andby which its right-hand screw is turnedin its seat, respectively, toopen or close the valve. 37 represents the lower or valve fork of saidbranched valve -joint in which said screw valve-sten works, and 32 isthe peripheral screw around the end of said fork, on which screw theperforate screw 33 of 'the jan-nut 34 engages. The said j am-nutperforate screw has a left-hand thread, andis thereby diverse from thevalve-screw and so unaffected by its action.

35 represents a rubber gasket-ring around the valve-stem 23, and whichgasket when tight pressed by the shoulder 36 of the jamnut 34, when saidnut is rcrewed upon its seat, makes a gas-fight joint around theaforesaid valve-bore 10. The neck 29 of said Valvesten is seated andworks during the opening and closing of the valve in the circnlaropening 38 in the end of said jam-nut.

The operation of this annonia-valve, in conjunction with the compressorsupplypipe, (both of which are seated and operate within the integralbranched forked valve-joint.,) is as follows: The empty gas-cylinder isplaced on its side in the reverse position to that shown in Fg. I, sothat the dipper-pipe, instead of presenting downward, as shown in fulllines in said figure, presents Upward, as shown in brokenlines. Theconpressor supply-pipe 15, a detail of which is shown in Figs. I and II,by its screw-attachment end 16 is then screw-seated` in the screw-bore13 of the upper fork of the integral branched Valvejoint, the rubbergasket-ring 17 being placed around said pipe and on the gasket-seat l-iwithin said upper fork. The jam-nut 18, that is screw-mounted on saidcompresso' supplypipe above said fork, is screwed down until itsufiiciently compresses said rubber gasket 17 so as to form a gas-fightjoint. The said compressor supply-pipe connects with the usual branchpipe, in which is located the supplyvalve and the escape-valve, the saidsu pply- Valve connecting with and turningon and o& the supply from theusual ammonia-refrige'- ator compressor coil. The said two lastnamedvalves and compressor-coil are not shown, as they are of usualConstruction, and therel'ore no novelty is claimed in tlen. At the sametime they are referred to in the operation because they are operated inconjunction therewith,tthe said supply-valve to `respectively stopand'`open the supply from a free inlet through the compressor supply-` pipe15 'and the angle-bore 12 into the main valvebore 10, so that when theaforesaid usual supply valve beneath the usual ammonia conpresso; coil(said valve and coil not shown) is opened the compressed ammonia ischarged through said valve-bore and through the arc-curved dipper-pipeinto the gas-oylinder 1. The said cylinder at the time of filling islaid on its reverse side to that shown in Fig. I, so as to present saiddipper-pipe upward,as shown in broken lines in said figure.

Once or twice, or as many times as is deemed necessary, during theprocess of charging the gas-cylinder the supply-valve beneath theanmonia-coil is closed and the usual aforesaid escape-valve is opened toallow of the escape of air or volatile gas from said cylinder by thepressure of the charge. Now it will be seen that as during the processof chargin: the said arc-curved dipper-pipe is presented upward, withits tnouth in close proximity to the top of the cylinder, in theposition shown in brokenlinesinFig. I, there- IOO fore the air orvolatile gas which always rises to the top side of the cylinder duringcharging readily escapes through said dipper-pipe when the said usualsupply-valve is closed and the escape-valve is opened. When thegas-cylinder is charged, the shoulder 28 of the anmonia-valve stem 23 isscrewed homo to its gas-fight pressure-seat against the softmetal gasket20, so as to eect a gas-fight joint that commands the sole outlet of thegascylinder. The compressor supply-pipe 15, that communicates with theammonia-coil, is then disengaged from its screw-seat in the upper forkof the branched valve-joint, and a common screw-stopper may, if desired,be inserted in its place merely to keep the anglebore clean. Thegas-cylinder is then ready for shipping in the form shown in full linesin Fig. I, as its branched Valve-joint and the wrench-seat of itsvalve-stem are in a measure protected within the concave recess 2 ofsaid cylinder. In Fig. I, however, is shown in broken lines amodification of, the valve end of said cylinder, in which its endperiphery has an inward curve 39, in which the inwardly-projecting andperipherally-expanding lug 40 of the cover 41 engages and constitutes aIIO more perfect protection of the valve. On the opposite side of saidcover an inwardly-projecting lug 42 confines and clamps against saidinwardly-curved edge of the cover the i square head 43 of the bolt 4i,the screw end of which bolt passes through the bolt-hole 45 in saidcover and is secured in its seat, and thus fastenes the cover by thescrew-nut 46. 47 represents thumb and finger holes in said cover toenable the convenient handling of the same while it is being placed toits seat and bolted to the end of said gas-cylinder. The said coverprovides a complete protection from both dirt and accident for thevalve. After the charged cylinder has reached its destination and it isdesired to discharge the same, the gas-cylinder is laid on the sameside, as shown in Fig. I, which is the reverse side to that on which itis laid while charging, so that the mouth of its are-curved dipper-pipe6 is then, as shown in full lines, in close proximity to the bottom ofsaid cylinder, so as to be able to completely discharge the contents ofthe same. The pipe connection to the usual receiver, which in thedischarge is the equivalent of the compressor supply-pipo 15 used incharging, is then attached as Was said supply-pipe, and as the mouth ofsaid arccurved dipper-pipe is in close proximity to the bottom of thecylinder the charge thereof is clean drawn.

I do not confine myself to the use of this valve and itscoadjntantcharging device confined in their integral branched joint toits use in chargingand discharging ammoniacylinders, for it is evidentthat the device may be advantageously used in connection with otherfluids, especially of all such which are charged and inclosed in vesselsunder pressure.

I claim as my invention 1. In an ammonia-Valve, the combination of thegas-cylinder, the branched valve-joint, the bearer-head for thevalve-joint, the valve-stem in said joint, and the are-curveddipper-pipe 6, extendirg from the bearer-head to the side of thecylinder, substantially as described.

2. In an ammonia-valve, the combination of the gas-cylinder having theconcave valve bearer-head, .the integral forked branched valve-jointscrew-seated in said head, one of the forks of saidjoint provided withthe main horizontal screw-threaded bore 10 and the other fork providedwith the angle-bore 12 and the enlarged screw-perforate bore 13, thescrew valve-stem that works in said screwbore 10, and the com pressionspply-pipe that engages in said screw-perforate bore 13, substantiallyas described.

3. In an ammonia-valve, the combination of the integral forked branchedvalve-joint provided with the main screw-threaded valvebore 10, thescrew-threaded valve-stem 23, having the shoulder 30, the elongated neck29, the Wrench-seat 31, the smooth reduced eX- tension 25, the secondaryreduced extension 26, the Valve-shoulder 28 between said extensions, thesoft-metal gasket 20, against which said valve-shoulder presses toproduce a gastight seat, and the bevel end 27 of said valvestem,substantally as described.

4. In an ammonia-valve, the combination of the integral forked branchedvalve-joint provided with the fork 37, the main screwthreaded valve-bore10, and the peripheral screw 32, the screw valve-stem that works in saidbore, the soft-metal gasket against which said valve closes, the rubbergasket 35, and the jam-nut 34, having the jam-shoulder 36 and theperfol-ate screw 33, substantially as described.

5. In an am monia-valve, the combination of the integral forked branchedvalve-joint having the fork 37, provided with the screwthreaded bore 10,the valvescrew-threaded sten 23, the soft-metal gasket against whichsaid valve closes, the said hunchback j ointalso provided with theangle-bore 12, that connects with the valve-bore 10, the enlargedscrewperforate bore 13, and the gasket-shoulder bore 14, the rubbergasket 17, the screw-at- 'tached compressor supply-pipe 15, and thejam-nut 18, having the round stern 19, the progressive butt-end ot'which jams against said rubber gasket 17, substantially as described.

6. In an am monia-valve, the combination of the gas-cylinder 1, theconcave valve bearerhead 2, having the perforate center screwthreadedseat 3, the integral branched valvejoint 5, having the screw-threadednozzle 4, and the valve and compressor supply bores, the valve-stem insaid valve-bore, the concave head of said gas-cylinder having theinwardlycurved lip 39, and the cover 41, having the inwardly-projectinglugs 40 and 42, and the bolt 44, whose head and screw-nut hold saidcover to the concave valve-head of said cylinder, substantially asdescribed JAOOB DREISOERNER. In presence of- BENJN. A. KNIGHT, SAML.KNIGHT.

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